Detailed Description

The statistical sensitivity (sigma) of an EDM experiment depends on the electric field (E), the number of neutrons (N) and the neutron storage time (tau):

sigma ~ 1 / (E * sqrt(N*tau))

The nEDM experiment at the Spallation Neutron Source was conceived by Golub and Lamoreaux in a seminal paper. This approach takes advantage of an amazing confluence of superfluid helium properties to substantially increase E, N, and tau: